Cpu voltage settings

[Mando772004]

do any ofthese settings seem out of order? Im running a b650 aorus pro ax. I have no oc only pbo enabled. The last 2 settings (cpu and vcore loadline calibration were set to 6% i set them to auto). Reason im askingbecause im having problems with dx12 games occassionally crashing on fullscreen mode, seems to be speficially also when framegen is enabled. One guy said he fixed it by disabling asus multicore enhancement on his intel platform but i dont know the equivalent to that on amd. I know for a fact it isnt a hardware problem cuz i replaced everything and still had the same issue, only thing left is the mobo and im sure a faulty mobo wouldnt cause dx12 games to run fine on windowed fullscreen but occasionally crash on fullscreen

[bal723]

the only thing i wonder is why b650 with an 7950x3d

[Dedayog]

2 hours ago, bal723 said:

the only thing i wonder is why b650 with an 7950x3d

Cuz the B650's are actually incredibly well built for "budget" boards. or were the budget boards cuz 620 wasn't a thing yet.  The Pro AX is a top end B650 board as well, competing against X670 easily.

 

Your voltage is perfectly fine.  Leave it alone.  Set PBO/CO (hopefully -30 all core) and enjoy.  There is no need to even play around or look at those voltages.

 

If you need any help with your 7950X3D, @Agall has done extensive testing with his and may have some tweaks.

[Agall]

4 hours ago, Mando772004 said:

do any ofthese settings seem out of order? Im running a b650 aorus pro ax. I have no oc only pbo enabled. The last 2 settings (cpu and vcore loadline calibration were set to 6% i set them to auto). Reason im askingbecause im having problems with dx12 games occassionally crashing on fullscreen mode, seems to be speficially also when framegen is enabled. One guy said he fixed it by disabling asus multicore enhancement on his intel platform but i dont know the equivalent to that on amd. I know for a fact it isnt a hardware problem cuz i replaced everything and still had the same issue, only thing left is the mobo and im sure a faulty mobo wouldnt cause dx12 games to run fine on windowed fullscreen but occasionally crash on fullscreen

Are you running the 3D v-cache optimizer driver or forcing CCD0?

 

Regarding voltages, I'd leave those alone outside of PBO2 offsets. EXPO will sometimes force various voltage settings for RAM stability, so if any, disable EXPO and see if it changes anything.

 

Regarding fullscreen vs fullscreen windowed crashing, it could be the 3D v-cache optimizer driver. I haven't used it since day 1 when I tested it, and I noticed subtle frame time latency issues. Where I recommend simply changing CPPC settings, being usually under SMU in the UEFI to force CCD0. This effectively disables the driver since the Auto setting is the driver.

[bal723]

17 minutes ago, Dedayog said:

Cuz the B650's are actually incredibly well built for "budget" boards. or were the budget boards cuz 620 wasn't a thing yet.  The Pro AX is a top end B650 board as well, competing against X670 easily.

 

Your voltage is perfectly fine.  Leave it alone.  Set PBO/CO (hopefully -30 all core) and enjoy.  There is no need to even play around or look at those voltages.

 

If you need any help with your 7950X3D, @Agall has done extensive testing with his and may have some tweaks.

starting to understand new amd things slowly, thanks

[Mando772004]

36 minutes ago, Dedayog said:

Cuz the B650's are actually incredibly well built for "budget" boards. or were the budget boards cuz 620 wasn't a thing yet.  The Pro AX is a top end B650 board as well, competing against X670 easily.

 

Your voltage is perfectly fine.  Leave it alone.  Set PBO/CO (hopefully -30 all core) and enjoy.  There is no need to even play around or look at those voltages.

 

If you need any help with your 7950X3D, @Agall has done extensive testing with his and may have some tweaks.

Tbh id rather leave everything default cuz im already happy with the peformance im getting and im not sure if undervolting would be stable cuz its different for each chip, not worth the hassle in my personal opinion.

[Mando772004]

27 minutes ago, Agall said:

Are you running the 3D v-cache optimizer driver or forcing CCD0?

 

Regarding voltages, I'd leave those alone outside of PBO2 offsets. EXPO will sometimes force various voltage settings for RAM stability, so if any, disable EXPO and see if it changes anything.

 

Regarding fullscreen vs fullscreen windowed crashing, it could be the 3D v-cache optimizer driver. I haven't used it since day 1 when I tested it, and I noticed subtle frame time latency issues. Where I recommend simply changing CPPC settings, being usually under SMU in the UEFI to force CCD0. This effectively disables the driver since the Auto setting is the driver.

I already had it in bios to prefer cache and it would crash as well, i then resorted to setting it to auto and installing 3d vcache drivers and i still get the issue

[Mando772004]

32 minutes ago, Agall said:

Are you running the 3D v-cache optimizer driver or forcing CCD0?

 

Regarding voltages, I'd leave those alone outside of PBO2 offsets. EXPO will sometimes force various voltage settings for RAM stability, so if any, disable EXPO and see if it changes anything.

 

Regarding fullscreen vs fullscreen windowed crashing, it could be the 3D v-cache optimizer driver. I haven't used it since day 1 when I tested it, and I noticed subtle frame time latency issues. Where I recommend simply changing CPPC settings, being usually under SMU in the UEFI to force CCD0. This effectively disables the driver since the Auto setting is the driver.

Also worth mentioning that i tried using a 7600x on my mobo and it had the same issue so i dont think its a vcache driver problem

[Mando772004]

39 minutes ago, Agall said:

Are you running the 3D v-cache optimizer driver or forcing CCD0?

 

Regarding voltages, I'd leave those alone outside of PBO2 offsets. EXPO will sometimes force various voltage settings for RAM stability, so if any, disable EXPO and see if it changes anything.

 

Regarding fullscreen vs fullscreen windowed crashing, it could be the 3D v-cache optimizer driver. I haven't used it since day 1 when I tested it, and I noticed subtle frame time latency issues. Where I recommend simply changing CPPC settings, being usually under SMU in the UEFI to force CCD0. This effectively disables the driver since the Auto setting is the driver.

Also, can you tell me how i can disable 3d cores maybe i can try the games using the normal 8 cores. 

[Agall]

29 minutes ago, Mando772004 said:

Also, can you tell me how i can disable 3d cores maybe i can try the games using the normal 8 cores. 

AMD Overclocking, then reconfigure CCD0 for 0-0-0-0-0-0-0-0, called 'down mapping' or something within those that menu. fully configured is 1's for both and for me, it restarts within that menu once applied (so its not 'save and exit' like normal). 

 

Down configuring would help troubleshoot that, but you could also use Processor Affinity from the Details section of Task Manager to change with CPU cores an application can use. It does work live to the application, so you could test your game my changing its Processor Affinity to CPU 16-31 (starts at 0).

[Mando772004]

14 minutes ago, Agall said:

AMD Overclocking, then reconfigure CCD0 for 0-0-0-0-0-0-0-0, called 'down mapping' or something within those that menu. fully configured is 1's for both and for me, it restarts within that menu once applied (so its not 'save and exit' like normal). 

 

Down configuring would help troubleshoot that, but you could also use Processor Affinity from the Details section of Task Manager to change with CPU cores an application can use. It does work live to the application, so you could test your game my changing its Processor Affinity to CPU 16-31 (starts at 0).

Will test that when im home, also i saw there is a bios update for my mobo it released 25th of january so not long ago, ill try updating my bios as i currently have the version just before that new one. Ill also try (again) disabling xmp and having preferred cores to cache (again also :p). Hopefully i can reach something because i ran every stress test possible and everything seems good, i even rma'd the first 4090 thinking it was the issue

[Mando772004]

@Agall would it be worth it to try using the vbios on the asus website? Its from late 2022

[Agall]

30 minutes ago, Mando772004 said:

@Agall would it be worth it to try using the vbios on the asus website? Its from late 2022

Your EUFI updated recently and now you have stuttering, if I'm understanding properly?

[Mando772004]

4 hours ago, Agall said:

Your EUFI updated recently and now you have stuttering, if I'm understanding properly?

what stuttering? my problem is dx12 games occasionally crashing on fullscreen and i was asking if it would be worth it to try updating vbios

[Agall]

10 minutes ago, Mando772004 said:

what stuttering? my problem is dx12 games occasionally crashing on fullscreen and i was asking if it would be worth it to try updating vbios

I wouldn't if the only thing noted is ECC issues.

 

Do you usually have background tasks that are hardware accelerated? Something like game clients, Chrome, etc. I run into strange issues sometimes with some games and the window settings when certain applications are in the background, an example being Chrome with a Youtube video up. 

 

Otherwise, you're going to have to shotgun variables or just run everything in fullscreen windowed. I've had some games have frame time latency issues in fullscreen windowed, but that's been resolved in the instances of it I've seen in the last year. Changing some Nvidia Control Panel settings too like disabling v-sync and other features would be useful to test, maybe as well disabling the iGPU.

 

There's a lot of things to shotgun, various things related to VGA. vBIOS would be unlikely and is always risky, at least you have two different vBIOS. You could also try the other one built into the card if this has been a constant problem to test a vBIOS issue, that being the Silent versus Turbo modes or w/e Asus calls it on their card.

 

Another thing, if you're using native 12VHPWR/PCIe 5.0, there's some sense pin errors you can run into that can cause issues, like random 100% fan speeds and potentially crashes.

[Mando772004]

17 minutes ago, Agall said:

I wouldn't if the only thing noted is ECC issues.

 

Do you usually have background tasks that are hardware accelerated? Something like game clients, Chrome, etc. I run into strange issues sometimes with some games and the window settings when certain applications are in the background, an example being Chrome with a Youtube video up. 

 

Otherwise, you're going to have to shotgun variables or just run everything in fullscreen windowed. I've had some games have frame time latency issues in fullscreen windowed, but that's been resolved in the instances of it I've seen in the last year. Changing some Nvidia Control Panel settings too like disabling v-sync and other features would be useful to test, maybe as well disabling the iGPU.

 

There's a lot of things to shotgun, various things related to VGA. vBIOS would be unlikely and is always risky, at least you have two different vBIOS. You could also try the other one built into the card if this has been a constant problem to test a vBIOS issue, that being the Silent versus Turbo modes or w/e Asus calls it on their card.

 

Another thing, if you're using native 12VHPWR/PCIe 5.0, there's some sense pin errors you can run into that can cause issues, like random 100% fan speeds and potentially crashes.

im using an atx 3.0 psu so the im using a direct cable with no adapter, this can be the issue? doesnt make sense if its the issue cuz it would probably cuz games to crash in general not just in fullscreen and not just dx12 games

[Agall]

16 minutes ago, Mando772004 said:

im using an atx 3.0 psu so the im using a direct cable with no adapter, this can be the issue? doesnt make sense if its the issue cuz it would probably cuz games to crash in general not just in fullscreen and not just dx12 games

12VHPWR native does weird things, if you still have the adapter, its worth a test. Most PSUs with native 12VHPWR also support the 2x8pin to 12VHPWR where the strange 'loss of power' symptoms can go away. I've only ever seen it with the 1:1 cable personally. Its a variable to test.

[Mando772004]

5 hours ago, Agall said:

12VHPWR native does weird things, if you still have the adapter, its worth a test. Most PSUs with native 12VHPWR also support the 2x8pin to 12VHPWR where the strange 'loss of power' symptoms can go away. I've only ever seen it with the 1:1 cable personally. Its a variable to test.

maybe ill try that, also i have a question, why does my cpu boost higher with pbo disabled? im thinking about just disabling it, i even did game benchmarks and there was practically no difference but i did notice the cores boost better, should i just have it on disabled or are there any disadvantages? also i set it to prefer cache in bios and i stopped the amd 3dvcache service just in case, is this also ok or should i leave it as is

[Bagzie]

15 hours ago, Dedayog said:

Cuz the B650's are actually incredibly well built for "budget" boards. or were the budget boards cuz 620 wasn't a thing yet.  The Pro AX is a top end B650 board as well, competing against X670 easily.

 

Your voltage is perfectly fine.  Leave it alone.  Set PBO/CO (hopefully -30 all core) and enjoy.  There is no need to even play around or look at those voltages.

 

If you need any help with your 7950X3D, @Agall has done extensive testing with his and may have some tweaks.

The B650 boards really are well built , My board at the time was the cheapest you could buy and still managed to keep a 7950X at full load for a long sustained test whilst having Vrm's sitting under 80c , Pretty impressive for a budget board.

 

I'm not qualified enough on the matter to add anything to what @Agall has allready mentioned so will leave you in his very capable hands.

[Mando772004]

4 hours ago, Bagzie said:

The B650 boards really are well built , My board at the time was the cheapest you could buy and still managed to keep a 7950X at full load for a long sustained test whilst having Vrm's sitting under 80c , Pretty impressive for a budget board.

 

I'm not qualified enough on the matter to add anything to what @Agall has allready mentioned so will leave you in his very capable hands.

Do you happen to have games specifically DX12 games occasionally crash on fullscreen mode, but work fine on windowed fullscreen?

[Agall]

10 hours ago, Mando772004 said:

maybe ill try that, also i have a question, why does my cpu boost higher with pbo disabled?

Using the PBO2 settings in my signature. I run an NH-D15 w/ AM5 offset in a FD North (mesh) with 4x140mm case fans. The NH-D15 fans are on the outboard parts of the tower leaving the middle open. My ambient temperature for those runs weren't anything special, considering it was during summer in my current house which doesn't have central air (soon).

 

I would run some cinebench R23 and see. Regarding boosting behavior, the 7950x3D is strange. Dependingin on what's happening, I see as high as 5.9GHz on CCD1, CCD0 being capped at 5.25GHz. Generally, if you're running a full 16c/32t configuration, you'll see high maximum boosts on both CCDs but won't with only 8c/32t. Even just CCD1 doesn't perform as well since heat soak into CCD0 appears to limit CCD1 (and TDP). I've done a lot of game testing with CCD configuration, even down to CCD0 2c/4t to see if I could sustain a higher boost which it doesn't.

 

If your CPU is boosting higher with PBO2 turned off, then that PBO2 offset is probably not stable. Its common now a days to accidentally voltage limit a CPU or GPU in attempting to under volt, I've seen it a few times with the 5800x3D. Why I always suggest validating any PBO2/under volt with cinebench R23.

[Mando772004]

37 minutes ago, Agall said:

Using the PBO2 settings in my signature. I run an NH-D15 w/ AM5 offset in a FD North (mesh) with 4x140mm case fans. The NH-D15 fans are on the outboard parts of the tower leaving the middle open. My ambient temperature for those runs weren't anything special, considering it was during summer in my current house which doesn't have central air (soon).

 

I would run some cinebench R23 and see. Regarding boosting behavior, the 7950x3D is strange. Dependingin on what's happening, I see as high as 5.9GHz on CCD1, CCD0 being capped at 5.25GHz. Generally, if you're running a full 16c/32t configuration, you'll see high maximum boosts on both CCDs but won't with only 8c/32t. Even just CCD1 doesn't perform as well since heat soak into CCD0 appears to limit CCD1 (and TDP). I've done a lot of game testing with CCD configuration, even down to CCD0 2c/4t to see if I could sustain a higher boost which it doesn't.

 

If your CPU is boosting higher with PBO2 turned off, then that PBO2 offset is probably not stable. Its common now a days to accidentally voltage limit a CPU or GPU in attempting to under volt, I've seen it a few times with the 5800x3D. Why I always suggest validating any PBO2/under volt with cinebench R23.

Well i never see 5.9ghz i dont think i ever saw a number even near that, i think max i saw was like 5.7ghz and not in cinebench. In cinebench my cores boost to around 5ghz max on 8 cores and around 4.8 on the other 8. This has to be normal right? No way my cpu could be underperforming that hugely. This is with or without pbo enabled. I have no oc at all or undervolt

[Agall]

5 minutes ago, Mando772004 said:

Well i never see 5.9ghz i dont think i ever saw a number even near that, i think max i saw was like 5.7ghz and not in cinebench. In cinebench my cores boost to around 5ghz max on 8 cores and around 4.8 on the other 8. This has to be normal right? No way my cpu could be underperforming that hugely. This is with or without pbo enabled. I have no oc at all or undervolt

Well what are you getting for cinebench R23 in terms of scores?

 

Those sets of benchmarks in that post I took as a point of reference, being various CCD configuration and duration runs. Sample of 1 with a proven PBO2 setup for my chip, "PBO +200MHz / -15mV curve CPPC in 'prefer cache'"

 

Also, I only see 4.8-4.9GHz all core during cinebench, which results in those scores. The HWinfo64 data screenshotted were only for the cinebench run, so there's no idle time factored in with that data.

[Mando772004]

1 hour ago, Agall said:

Well what are you getting for cinebench R23 in terms of scores?

 

Those sets of benchmarks in that post I took as a point of reference, being various CCD configuration and duration runs. Sample of 1 with a proven PBO2 setup for my chip, "PBO +200MHz / -15mV curve CPPC in 'prefer cache'"

 

Also, I only see 4.8-4.9GHz all core during cinebench, which results in those scores. The HWinfo64 data screenshotted were only for the cinebench run, so there's no idle time factored in with that data.

In that case then im good i think, i get 36k ok cinebench like you so yeah thats definitely within range

[Agall]

32 minutes ago, Mando772004 said:

In that case then im good i think, i get 36k ok cinebench like you so yeah thats definitely within range

I haven't done per core PBO2, I suspect its not as impactful on the 7950x3D since its got some hard limits. I haven't seen anyone do XOC on the 7950x3D, but I've thought about delidding a few times. Delidded, the 7950x3D could probably sustain >5GHz all core if not higher since the extra two heat transfer layers associated with the solder and IHS are more limiting with 3D v-cache than normal CPUs.